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AWS BVAg-8b vs. AWS BAg-7

Both AWS BVAg-8b and AWS BAg-7 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 78% of their average alloy composition in common. There are 16 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AWS BVAg-8b and the bottom bar is AWS BAg-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 84
83
Poisson's Ratio 0.36
0.34
Shear Modulus, GPa 31
31
Tensile Strength: Ultimate (UTS), MPa 170
150

Thermal Properties

Brazing Temperature, °C 800 to 900
650 to 900
Latent Heat of Fusion, J/g 140
130
Melting Completion (Liquidus), °C 800
650
Melting Onset (Solidus), °C 780
620
Specific Heat Capacity, J/kg-K 280
290
Thermal Expansion, µm/m-K 19
20

Otherwise Unclassified Properties

Density, g/cm3 10
9.3

Common Calculations

Stiffness to Weight: Axial, points 4.7
4.9
Stiffness to Weight: Bending, points 15
16
Strength to Weight: Axial, points 4.7
4.5
Strength to Weight: Bending, points 6.8
6.7
Thermal Shock Resistance, points 7.6
6.4

Alloy Composition


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Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0
Copper (Cu), % 26.8 to 29.2
21 to 23
Lead (Pb), % 0 to 0.0020
0
Nickel (Ni), % 0.3 to 0.7
0
Phosphorus (P), % 0 to 0.0020
0
Silver (Ag), % 70.5 to 72.5
55 to 57
Tin (Sn), % 0
4.5 to 5.5
Zinc (Zn), % 0 to 0.0010
15 to 19
Residuals, % 0
0 to 0.15